Study of Hydrogen effect on the electronic state of transition metal hydrides

利用x射线吸收光谱研究了四维和三维过渡金属氢化物的氢致电子结构修饰。讨论了TM氢化物的加氢性能与电子结构的关系。利用XAS的元素选择性和轨道选择性来探测其电子结构。吸收边缘附近的特征XAS谱图表明，由于氢化作用，费米能量发生了显著的变化，这取决于元素的不同。结果表明，电子结构的差异与氢化性能密切相关。

Hydrogen-induced modification of the electronic structures in 4d and 3d transition metal hydrides was investigated using x-ray absorption spectroscopy. Relationship between hydrogenation property and the electronic structure of the TM hydrides was discussed. The element and orbital selectivity of XAS was used to probe the electronic structure. The characteristic XAS profiles near the absorption edgeindicated significant shifts in the Fermi energy due to hydrogenation, which differed depending on the elements. It was concluded that the difference of the electronic structure is strongly associated with the hydrogenation property.